Bicycle frame



FIG. 1 is a side elevation view of the bicycle frame showing my new design it being understood that the opposite side is a mirror image thereof;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a perspective view thereof from the front, top, and right side;

FIG. 7 is a section view of the rear wheel stay thereof taken along line 7--7 in FIG. 1; and,

FIG. 8 is a section view of the down tube thereof taken along line 8--8, in FIG. 1.

The broken lines shown in FIGS. 1, 2, 4, 5 and 6 are shown for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a bicycle frame, as shown and described. 